Locomotive stoker



Patented Mar. 4, 1930 v STATE-S PATENT oFFmE NATHAN M. ownRn D nnwIN Anon-En TURNER, or nrrrsnnnon, rnNNsyLvANrA, ASSIGNORS, BYMESNE ASSIGNMENTS, TO THE STANDARD 'sToKER'ooMrANY INo., on NEW" YORK,: 71., n CORPORATION onnnnewnnn LOCOMOTIV E STOKEB ima filed June 4, 1926. Serial 113,732

. which Fig. 1 is a detail central, longitudinal, vertical sectionthrough a portion of a locomotive and the stoker mechanism, and

Fig. 2 is a detail plan view onthe line 2-2 of Fig. 1, some parts being omitted. The fuel may be brought to the firebox 10 of the locomotive by means of a conduit 11 delivering through an aperture 12 in the lower portion of the backhead 13 of the boiler. The riser conduit receiving fuel from the con There is shown a screw 15 within the conduit 11 for advancing the fuel therein and forcing it through the riser.

In order to protect the riser from the intense heat of the firebox it is enclosed within a Wall 16 U-shaped in horizontal section, the ends of which. abut against the backhead. The wall is formed of bricks, suitably shaped to give the wall the desired form and which interlock, as by groves and tongues. As shown, the wall is composed of three courses of bricks. The lower course 17 is seated within a U-shaped metal channel '18, which may be secured to the backhead 13 and to the frame .members of the grate. The bricks of the second course are provided at their tops and bottoms with tongues 19, 20, which enter suitable grooves in the bricks 21 of, the upper course and in the bricks of the lower course 17 The meeting faces of the bricks of each course are provided with grooves and tongues, as shown at 22, which preferably are of dovetail configuration.

For the purpose of anchoring thewall to the backhead a pair of angle bars 23, 24, are attached to the latter, each having a flange 25, 26, extending into a pocket formed in the inner faces of the bricks of each of the three duitll may be of any suitable form, as shown at 14, being in the form of a section of a bowl.

courses. The spreading of the wall may be prevented by attaching vertical bars, as 27, to thebackhead 13,.and forming in the bricks which abut the backhead suitable recesses for their reception. i

The riser 1 4 fits within the chamber enclosed by the wall 16, its side margins abutting against the bars 23, 2 4. At its upper end the riser may be provided with a laterally projecting flange 28, which overlaps the top of the wall 16. steam nipple 29 suitably secured to the backhead is provided for distributing jets over the top of the riser for scattering the fuel over the grate as it issues therefrom.

The det ils of the structure may be variously changed within the scopeiof the invention.

' We claim as our invention:

1. In a locomotive stoker, in combination, a boiler having a firebox, the backhead thereof being apertured for the introduction of fuel, a wall of masonry substantially U- shaped in honizontal section, extending inwardly from'the backhead of the'boiler and partially enclosing the backhead aperture, angle bars secured to the backhead and engagingshoulders on the wall, a riser conduit within the chamber partially enclosed by the wall, means for delivering fuel to the riser conduit, and means for forcing fuel therethrough.

2. In a locomotive stoker, in combination, a boiler having a firebox, awall of masonry substantially U-shaped in horizontal section, extending inwardly from the backhead ofthe boiler, and being formed of interlocking brick s, upright faces ofcontiguous bricks being interlocked, by dovetail grooves and tongues, and means protected from the heat generated in said'fireho'x, by said wall, for delivering fuel to the firebox through the chamber formed said wall.

3. In a locomotivestoker, in combination,

1 a boiler having a ,firehox, a flaring wall of masonry substantially .U -shaped in horizontal seetie xtendin in a ly f m e backhead of the :boiler, a riser conduit, said wall extending ahoiitlthe front and Sides of said en ineerssewers n w the r s IOU conduit, and means for forcing fuel therethrough.

4. In a locomotive stoker, in combination, a boiler having a firebox, an imperforate wall of masonry substantially U-shaped in horizontal section within the firebox and extending" inwardly from the backhead of the boiler and anchored thereto and being formed of interlocking bricks, a riser conduit within the chamber, partially enclosed by the wall, means for delivering fuel to the riser conduit, and means for forcing fuel therethrough.

5. In a locomotive stoker, in combination, a boiler having a firebox, a wall of masonry substantially U-shaped in horizontal section within the firebox and extending inwardly from the boiler, upright bars secured to the v backhead and fitted within grooves in the ends of the Wall, 'a riser conduit within the chamber partially enclosed by the wall. means for delivering" fuel to the riser conduit, and means for forcing fuel therethrough. v

6. In combination, a locomotive having a firebox, the backhead of which is apertured above the mud ring, a wall of masonry U- shaped in horizontal section partially inclosing the aperture, a riser conduit extending from the aperture upwardly through the chamber partially inclosed by the wall, said wall extending about the front and sides: of said conduit for shielding the same against the heat generated in said firebox, and a fuel conduit.

7. In a locomotive stoker, in combination, a boiler having a firebox, the backhead thereof being apertured for the introduction of fuel. a wall of masonry substantially U- shaped in horizontal section extending inwardly from the backhead of the boiler and partially enclosing the backhead aperture, v

the elements of the wall adjacent the backhead beingrecessed, Z-bars attached to the 45' backhead and engaging in the recesses, a riser conduit within the chamber, partially enclosed by the wall, means for delivering fuel to theriser conduit, and means for forcing fuel therethrough.

8. In a locomotive stoker, in combination, a boiler having a firebox, the backhead thereof being apertured for the, introduction of fuel, awall of masonry substantially U- shaped: in horizontal section extending in- Wardly from the backhead'of the boiler and partially enclosing the'backhead aperture,

conduit, and means for forcing fuel therethrough.

9. In a locomotive stoker, in combination, a boiler having a firebox, the backhead thereof being apertured forthe introduction of fuel, a U-shaped wall of masonry extending inwardly from the backhead of the boiler and partially enclosing the backhead aperture, adjacent elements ofthe wall being interlocked vertically and horizontally, angle bars secured to the backhead andengaging shoulders on the wall, a riser conduit within the chamber partially enclosed by the wall, means for delivering fuel to the riser conduit, and means for forcing fuel therethrough. a I I In testimony whereof we affix our signatures.

NATHAN M. LOWER. 7 E. ARCHER TURNER.

the inner face of the wall having recesses ad- 7 jacent to and following-the surface'contour of the backhead, Z-barshaving leaves secured to the backhead and leaves projecting into the recess and its intermediatesection form ing a bearing for the wall, a riser conduit within the chamber partially enclosed by the wall, means'for delivering fuel tothe riser 

